Turbosmart IWG75 Wastegate Actuator - Astra VXR Type H, 7 PSI, Black
The Turbosmart IWG75 is a high-performance upgraded wastegate actuator designed for the Opel/Vauxhall Astra VXR Type H and other compatible models equipped with a K04 turbocharger. It is engineered to improve boost response and deliver a smoother, broader boost and torque curve throughout the engine's rev range.
Compared with the factory actuator, the Turbosmart IWG75 features an improved operating ratio thanks to a larger effective diaphragm area and an optimised spring design. This allows the actuator to better resist the forces generated by boost pressure and exhaust backpressure while maintaining a fast response.
The actuator features a durable silicone-coated Nomex diaphragm, a high-quality billet aluminium housing, and a stainless steel rod and clevis. Turbosmart's locking collar design allows preload adjustment in accordance with the manufacturer's instructions.
Features and Benefits
Improved boost response: Designed to build boost earlier and maintain it further into the rev range.
7 PSI base pressure: Approximately 0.48 bar, suitable for compatible near-standard configurations.
Silicone-coated Nomex diaphragm: Engineered for durability and reliable operation.
Billet aluminium housing: Robust, precision-machined construction.
Stainless steel rod and clevis: Provides durability under demanding conditions.
Adjustable preload: Turbosmart's locking collar allows correct adjustment.
Bolt-on installation: Vehicle-specific mounting for straightforward installation on compatible turbo setups.
Technical Specifications
Product type: Internal wastegate actuator
Base pressure: 7 PSI (approximately 0.48 bar)
Colour: Black
Turbocharger: K04
Compatible engines: Includes the Opel/Vauxhall Astra H VXR with the 2.0-litre Z20LEH turbo engine, as well as certain Astra and Zafira versions equipped with a compatible K04 turbocharger.
Included Items
1 × Turbosmart IWG75 wastegate actuator
Vehicle-specific mounting bracket
7 PSI spring pre-installed
Required mounting hardware
Swivel hose fitting
